The M818 and M52A2 both share the same 6.44 gearsets. The M39s, M809s and M900s all used this gear with only a handful of exceptions and those has 10.26 gears. Oldgoat, is that 210 HP from the dyno or is that number listed somewhere? The only Multifuel to eclipse the 200HP mark was the LDS 465-2 that came in the M656, M757 family. Curious minds want to know. Now I'm no 5 ton expert at all, matter of fact, I've not owned one for nearly 20 years but I thought the primary fuel filter was different but don't quote me on that.